Drain cut-off



L. gnu-q. DRAIN CUT-OFF.

APPLICATION HLED MILZS. I919.

Patented J an. 13, 1920.

L'Ll zjlmmm band claimed, it being understood that, withiinrran spears rarnr came.

LENARD LITTLE, OF GAINESVILLE, GEORGIA.

DRAIN CUT-OFF.

Application filed January 25, 1919.

specification.

'- It is the object of this invention to provide a simple means, including a single lof' svalve, whereby a tank and a heater for the ank may be drained.

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the invention appertains.

r With the above and other objects in view,

,which will appear as the description pro- (1 eds, the invention resides in the combinatlon and arrangement of parts and 1n the etails of construction hereinafter described in the scope of what is claimed, changes in the precise embodiment of the invention shown can be made without departing from the spirit of the invention.

In the accompanying drawings Figure 1 is a diagram showing a system embodying the invention; and Figs. 2 and 3 are sectional details showing the valve in different positions.

In the drawings, the numeral 1 indicates a heater of anykind, which may include a water back 2. A-tank appears at 3, and the numeral 4 denotes a sewer. A pipe 5 extends between the water back 2 and the tank 3, a discharge pipe 6 leading from the water back 2 to the sewer 4. The discharge pipe 6 has a branch 7 which communicates with the tank 3 adjacent to its bottom. A supply pipe 8 enters the tank 3 at or near its top. The numeral-9 marks a delivery pipe whereby water may be conveyed from the tank 6 to a point of use.

A valve casing 10 is interposed in the supply pipe 8, and in the pipe 6 between the branch 7 and the sewer 4. A valve 11 is journaled in the casing 10 and may be manipulated by a handle 12 or otherwise. The valve 11 has a main port 14 extended therethrough, and is provided with a relatively small auxiliary port 15 disposed at an angle to the port 14 and communicating at its inner end with the port 14.

Let it be supposed that the valve 11 is arranged as shown in Fig. 2. Then the port 4 f rms a part of the inlet the auxiliary Specification of Letters Patent.

Patented'Jan. 13, 1920.

Serial No. 273,130.

port 15 being closed by a portion 16 of the valve casing'10. The water can move through the supply pipe 8 and enter the tank 3, the water moving by way of the branch 7 and the right hand end of the pipe 6 into the water back 2 and entering the tank 3 by way of the pipe 5, the water leaving the tank to the point of use, by the discharge pipe 9.

Suppose, however, that it is desired to drain the system. Then the valve 11 is rotated until, as shown in Fig. 3 the main port 14 forms part of the outlet pipe 6, the auxiliary port 15 communicating with the upper portion of the supply pipe 8, and the lower portion of the supply pipe being closed. Then, the water in the tank 3 flows away through the branch 7 the outlet pipe 6 and the main port 14 into the sewer 4. Similarly, the water in the pipe 5 and in the water back 2 can traverse the outlet pipe 6 and enter the sewer'4. The watenin the supply pipe 8 above the valve caslng 10 enters the port 14 by way of the port 15, and moves to theleft, through the pipe 6 into the sewer 4. Thus, the entire structure is drained.

In Fig. 2, the auxiliary port 15 is shown as closed by the part 16 of the casing 10. This arrangement is resorted to only when it is desired that water supplied by the pipe 8 shall not traverse the port 14, the port 15 and the right hand portion of the pipe 6,

and enter the tank 3 by way of the branch 7. If it is considered unolojectionable to permit a small quantity of water to enter the bottom of the tank 3 then, of course, the handle 12 may be swung in the direction of the arrow in Fig. 2 until the port 15 communicates with the right hand portion of the pipe 6. When the parts are arranged as last above described, the main port 14 will communicate with the pipe 8 more completely than is shown in Fig. 2, and the supply through the pipe 8 will be increased accordingly.

Describing the invention briefly, when the valve is arranged as shown in Fig. 3, the structure comprises a heater 2, a tank 3, a connection 5 between the heater 2'and the tank 3, an outlet 6 for the heater 2 having a branch 7 leading to the tank 3, an inlet 8 for the tank 3, a valve casing 10 common to the outlet 6 and the inlet 8 and a valve 11 journaled in the casing 10, the valve having a ai port 14 an auxiliary port 1 communicating with the main port 14, the auxiliary port 15 communicating with the upper part of the inlet, 8 when the main port 14 forms part of the outlet 6, the valve 11 being rotatable to cause the main port 14 to form part of the inlet 8, the auxiliary port 15 being closed by a portion 16 of the casing 10 when the main. port ll forms part of the outlet 6it being recalled, however, that by moving the handle 12 in the direction of the arrow in Fig. 2, beyond the posi tion shown, the port 15 may be brought into communication with the right hand portion of the outlet 6.

Having thus described the invention, what is claimed is 1. In a device of the class described, a heater; a tank; a connection between the heater and the tank; an outlet for the heater having a branch leading to the tank; an inlet for the tank; a valve casing common to the outlet and the inlet; and a valve journaled in the casing, the valve having a main port and an auxiliary port communicating with the main port, the auxiliary port communicating with the upper part of the inlet when the main port forms part of the outlet, the valve being rotatable to a position in which the main port forms part of the inlet and the auxiliary port is closed by a portion of the casing.

2. In a device of the class described, a heater; a tank; a connection between the heater and the tank; an outlet for the heater having a branch leading to the tank; an inlet for the tank; a valve casing common to the outlet and the inlet; and a valve journaled in the casing, the valve having a main port and an auxiliary port communicating with the main port, the auxiliary port communicating with the upper part of the inlet when the main port forms part of the outlet, the valve being rotatable to a position in which the main port forms part of the inlet and the auxiliary port communicates with the outlet in the direction of the tank and the heater.

3. In a device of the class described, a heater; a tank; a connection between the heater and the tank; an outlet forv the heater having a branch leading to the tank; an in-' let for the tank; a valve casing common to the outlet and the inlet; and a valve journaled in the casing, the valve having a main port and an auxiliary port communicating with the main port, the auxiliary port com municating with the upper part of the inlet when the main port forms part of the outlet, the valve being rotatable to a position in which the main port forms part of the inlet and the auxiliary port is closed by a portion of the casing, or to a position in. which the main port forms part of the inlet and the auxiliary port communicates with the outlet in the direction of the tank.

In testimony that I claim the ioregoing as my own, I have hereto aflixed' my signature in the presence of twowitness es.

LENARD LITTLE; Witnesses:

LUTHER ROBERTS, E. D. KENYON. 

